Dobby cord



y 1942- a. T. CLARK 2,284,042

DOBBY CORD Original Filed June 22, 1959 Patented May 26, 1942 to E. H. Jacobs Mfg. 00., 1110., Danielson, Conn, a corporation of Connecticut Original. application June 22,- 1939, Serial No. 280,509, now Patent No; 2,240,982, dated May 6, 1941. Divided and this application April9, 1941, Serial No. 387,639

2 Claims.

My present invention is a divisional of my prior application Ser. No. 280,509, filed June 22, 1939, now Patent No. 2,240,982, dated May 6, 1941.

In my said prior application I elected to claim the process of manufacture of my improved dobby cord terminal invention; and in the present application I have elected to claim the resultant article of manufacture, i. e. the dobby cord terminal made by the process of my said prior application.

My present invention relies upon a die-cast dobby cord structure, uniting a hard metal eyelet, hook, U-shaped member or the like to a flexible braided and wire reinforced dobby cord by interlocking means between the wire of the reinforcement and the hard metal terminal member; and thereupon holding the interlocked structure by a die-cast mass of molten metal, simultaneously bonding the interlocked metal parts and forming a ferrule on the braided cord.

Thus, in carrying out my present invention, 1' provide means to positively interlock the metalto-metal, viz., the metal of the wire reinforced heart or core in the cord, with the eyelet, hook, or U-shaped member. Thereby, I obtain the advantages of metal-to-metal in a structure, giving great tensile strength, insuring long wear and usefulness to the dobby'cord.

Thus, in a construction where an eyelet or U- shaped member is employed, I may and preferably do form the eyelet with a pair of depending arms adapted to fit about the metal core of the cord, and produce an interlocking construction between the cord and the eyelet member by hammering, riveting, or peening over the top of the wire between the spread arms of the eyelet or U-shaped member, constructing the same to cooperate for this purpose.

I may also form the depending portions of the eyelet, hook, or U-shaped member with corrugations and positively interlocking the wire cord by Wrapping or enclosing it about such corrugations, either where a pair of arms or-a single shank member is utilized for this purpose.

Referring to the drawing:

Fig. l is a view illustrating the assembly of the terminal members;

Fig. 2 is a cross-sectional view illustrating the completion of the union between the eyelet memher and the dobby cord end by molten metal, as

/ by die-casting;

Fig. 3 illustrates the completed terminal;

Fig. 4 illustrates a modified form wherein the wire end is interlocked with the shank of the eyelet member;

Fig. 5 illustrates the same in cross-section with the die-cast molten metal completing the union, and

Fig. 6 is aview of the completed terminal.

As shown in the drawing, a dobby cord section comprising a braided sheath I and a wire core 2 of the usual type is prepared by removing a portion of the sheath I from the end to expose the projecting wire core 2. An attaching hard metal hook or eyelet member 3 having a U-shaped contour, with a pair of depending arms 4 and 5, and preferably with the arm formed of corrugations or the like, as indicated at 66 and 1-1 for better interlocking with the molten metal to be supplied therearound, is fitted about the projecting wire core 2, as shown in Fig. 1.

Thus, the arms of the U-shaped member straddle the projecting core 2 and, if desired, the

end part of the wire 2 as indicated at 8 may be flared or hammered out to give a still further interlocking action with the U-shaped member. 'Ihereupon a mass of molten metal [0 is applied either by molding, welding, or, preferably, by die-casting the same about the interlocked arms 4 and 5 of the member 3 flowing in, around, and about the same and into the corrugated portions. I

Both the wire core 2 and the ridges and grooves 6 and l in the arms 4 and 5, as well also as the covering of the end part of the dobby cord sheath I, provide a ferrule I2 therefor and complete the terminal.

Thus a more compact, strong, firm,'rigid, interlocking construction is obtained, firmly binding the wear-resisting member 3 directly to the wire core 2 and to the enclosing sheath I. This terminal is applied to each end of the dobby cord, as will be readilyunderstood;

As clearly shown in Figs. 4, 5, and 6, a modified form is illustrated, wherein the wear-resisting or hardened steel-engaging member is positively interlocked with the Wire core by wrapping the wire about the shank. In this latter form, I have shown a hook l5 having a screw-threaded shank 16 around which the projecting end portion l8 of the wire core is wrapped, as clearly shown in Figs. 4 and 5. The hook I5 can, of course, be an eyelet, if desired, and the hook can be closed against the shank to make a loop, if desired.

With this construction, the molten metal I0 is then applied by molding, welding, or die-casting,

between the wire of the core 2 and the member l5.

In both forms it will be noted that I have obstructionwith the hook, eyelet, or U-shaped over a part of said metallic fastener, and molten member of wear-resisting material, preferably.

hardened steel, and with the same having" a shank, or shanks, in direct contact with the wire core of the dobby cord 6 exposed for an appropriate length forsuch interlocking and'the completion of the union between the eyelet, hook, or

U-shaped member and the dobby cord being effected by simultaneously uniting the same with molten metal In and forming a ferrule l2, thus providing a complete finished terminal.

I claim: 7 1. A reinforced dobby cord of the kind described, comprising a braided textile sheath and metal covering, protecting, and bonding the interlocked shanks and wire, and forming a ferrule on the end portion of the sheath.

2. A reinforced dobby cord of the kind described, comprising a braided textile sheath and a reinforced wire core, the'wire core extending beyond the end portion of the sheath, a metallic fastening member formed with a plurality of extending shank portions in contact with diametrically opposite portions of said extending wire core overlapping said wire core, said shanks having uneven contours for locking engagement with moltenbonding metal, and with the extreme end a reinforced wire core, the wire core extending 1 beyond the end portion of thevsheath, a metallic fastening member formed with a plurality of extending shank portions in' contact with diametrically opposite portions'of said extending wire core overlapping said wire core, and with the extreme end portion of the wire core extending beyond the shank portions and being riveted portion'of the wire core extending beyond the shank portions and being riveted over a part of said metallic fastener, and molten metal covering, protecting, and 'bondingthe interlocked shanks and wire, and forming a ferrule on the end portion of the sheath and holding the riveted wire endand metallic fastener in locking engagement. 7

' BRECKINRIDGE T. CLARK. 

